Backflow Preventers

Watts 9DM3 0061935 1/2 inch Female Union Brass Body Dual Check Backflow Preventer with Atmospheric Vent

Caleffi 573002A AutoFill Combo 1/2 inch Female Automatic Water Boiler Feed with Backflow Preventer

Parts

Viessmann 7134 743 1 inch FIPS Three Way Mixing Valve

Viessmann 7424 120 Basic Horizontal Vent Kit

Viessmann 7498 530 Model 120/80 Low Loss Header with Insulation

Viessmann Manufacturing® 7498529 80/60 Series Low Loss Header With Insulation, 19.5 gpm Flow Rate

Viessmann 7179 488 Immersion Temperature Sensor #5

Air Eliminators

Caleffi 551008A Discal 1-1/2 inch Female Brass Micro-Bubble Type Air Separator

Circulator Pumps

Grundfos 59896343 UPS15-58-FRC Cast Iron 115 Volt 1/25 Horsepower Three Speed Circulator with Integral Check Valve and Rotated Flange Position less Flanges

Grundfos 52722512 UPS26-99-FC Cast Iron 115 Volt 1/6 Horsepower Three Speed Circulator with Integral Check Valve less Flanges